SimpleClock.

It’s a simple clock. Just what I needed. Question though, is there a way to change it from military time (24 hour) to a regular 12 hour clock?

This clock is simple, looks great and is free (with no ads). What's not to love? I use it as desk clock on my desk (on a charging dock). The only change I would make is the ability to remove the atmospheric pressure display, which I don't care about and find disrupting this otherwise really clean design.